MacGyver is called to a meeting with a former British spy, who has learned of a group of terrorists that will use a new plastic explosive in a vengeful attack on the US army. This explosive can be hidden anywhere. Before the spy can give MacGyver all the details he's shot. MacGyver flees through a window and is picked up by a boat. The female who owns the boat soon understands that the man she rescued doesn't remember who he is. Now the question is who will reach MacGyver first - Pete or the terrorists... And will there be time to stop the assassination plans?

MacGyver uses a gun in this episode, but only when he has no memory. Even then it doesn't feel right.